Coby CV185 Folding Deep Bass Stereo Headphones, Black (Discontinued by Manufacturer) 40mm Neodymium Driver Units Compact Folding Design Adjustable Headband Gold-Plated 3.5mm Stereo Plug High-performance 40mm neodymium driver units deliver deep bass sound Compact folding design for easy carrying and storage Adjustable headband for maximum comfort Gold-plated 3.5mm stereo plug